Phillies left-hander Cole Hamels has yet to make an appearance in a Grapefruit League game because of shoulder tendinitis that he developed over the winter, but he told reporters last week that his arm is starting to feel “really good” again and he is expected to take a big step forward within the next few days.

Jim Salisbury of CSNPhilly.com reports that Hamels threw 33 pitches off a bullpen mound on Sunday and has only one mound workout left before the Phillies’ medical staff clears him to face live hitters.

Hamels has already been ruled out for Opening Day, but he could be ready to debut around mid-to-late April if he avoids further setbacks.

The 30-year-old ace posted a 3.60 ERA and 202 strikeouts in 220 innings last season.

He signed a six-year, $144 million contract extension with the Phillies in July 2012.